9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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*** **  * * ** * *       *
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 * ****** ****   *** * * **     0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
  * *** *  * *** * **    ** * first_number;
****  *  **  * ** * ** ***  * second_number;
 * ** **     ***   *     * swap;

 *  *  * ** **  *   **  * ** ** **  *  *** **   * *   *          * *    **  **   *


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*     * *   * * *****      * *    *    **  * * **    );
**   **  ** *   **  *** ** **  *    *****  ** ** * *   *  ** *
*      * ******* *  *** *   ** * 0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
*   **   ** * *   **** *
*      (){
*** **  ** 
   *  **** *      *   of x and y: *     *  
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    *  *
**
* ** * *
* *** *   * ** *  x **  y * ** * **  * *     * *  *


    *  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
 ***    **  ******
int ******  
{
***  **  ***** * * a,b,swap;
**  * *        *      ** 
 *   ** ** **  *  *  *  *** 
swap=a;
a=b;
b=swap;
  *  * **  *  * *      a);
* * *  * * * ** *    *
* *** ***  *  *   0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
 *  * *** **   ** **  
main()
{
* **     *    *   *
 *   ***  *   * *   ** *
*  ** **  *****  * *  **   
swap=a;
a=b;
b=swap;
*   * *** *  ** **  a);
******* **  * * * *  * * 
***  **  **  ** ** 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
***  *** *  ** *  **
 int main(){
int a,b;

      ** ***   *   * *** **     **  *  *  ** *** * **    **   *  **   ** 

      * **   *** *   **  * *    ***  *   * * ***

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
** **  * *    ** **  *
 ** ** *** main(){
int a,b;

   ** ** ** * * ***     *** *   ** ***   ***  *****   *  * ****** * *  **    *

 * *** **    ***  *  ** **** ***    ***  **  *  ***  

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
 *  **     **   *** **   *
 ** * **   *  *  **   ***    * x,y,temp;
* * ** ** * *  ***   * * * * * 
 ** * ** * ** **** * ***  * * **** *   **   *  ***    *
  ***** ***   **      ** ** **     * **          * * * **
    
*    *  *** *  **  **    **** = x;
***   ** *** **** *  ** * *  ** = y;
   ******** **** *   * * *  = temp;
*****     *** * ** *   ***  
*** ** *    * **     **      ** *** *******  x,y);
     **   * **  **    *
 **  *** ***  *  *  **  ***    ** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output